Gage.



W. RICHARDSON.

GAGE. APPLICATION FILED AUG. 16, 1910.

Patented Apr. 25, 1911.

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WILLIAM RICHARDSON, OF LOS ANGELES, CALIFORNIA.

GAGE.

Specification of Letters Patent.

Patented Apr. 25, 1911.

Application filed August 16, 1910. Serial No. 577,488.

To all whom it may concern:

Be it known that I, IVILLIAM RICHARD- soN, a citizen of the UnitedStates of America, residing at Los Angeles, in the county of LosAngeles, State of California, have invented a new and useful Gage; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to gages, particularly to such as are adapted tobe employed for marking the outlines of hinge mortises in doors, etc.,and it may be said to consist in the novel and improved construct-ion,arrangement and combination of the parts of the gage as will be apparentfrom the description hereinafter and as set forth in the claim.

Objects of the invention are to provide an article of the characterspecified which shall be of very simple construction and economical tomanufacture as well as strong and durable, light and convenient tohandle, easily applied and accurate in use, of a neat appearance, andpossessed of features which make it practical and marketable.

Other objects and the advantages of the invention will be apparent tothose skilled in the art from a consideration of the followingdescription of the preferred form of construction in which it isembodied, taken in connection with the accompanying drawings, in which,

Figure l is a perspective view of the gage, Fig. 2 is a rear elevationthereof, Fig. 3 is a plan view thereof, and Fig. 4: is an end viewthereof.

The plate C may be formed to provide a straight edge at the frontthereof and straight edges at the sides at right angles to the frontstraight edge. The rear edge of the plate C is preferably parallel withthe front edge but the rear corners of the plate may be curved as shownfor convenience in handling. The top of the plate C near the front edgethereof may be marked along its length to indicate units and divisionsof linear measure, as shown. On the underside of the plate O isadjustably mounted the bar G which has its front edge in parallel withthe front edge of the plate and is secured in place by means of pins A,A, having knurled heads and passing through the parallel slots H in theplate 0 and screwed into the bar. The slots H are at right angles to thefront edge of the plate C so as to permit of the bar Gr being movedtoward or from the front edge of the plate C by simply partiallyunscrewing the pins A, A, and then moving the bar G to the desiredpositionthe front edge of the bar G always remaining in parallel withthe front edge of the plate O-whereupon the pins A, A, may be screwedinto the bar G to secure it in adjusted position. It will be understoodthat at one or both sides underneath the plate C it may be marked toindicate the distance of the front edge of the bar G from the front edgeof the plate C so that the width of the hinge mortise being known thebar G may be adjusted in position relatively to the front edge of theplate O according to the width of the hinge and the gage may then beheld with the front face of the bar Or in engagement with the surface ofthe door, etc., at right angles to the surface to be marked for thehinge mortise, and the width and length of the mortise may thereuponreadily be marked on the last surface. On the underside of the rear ofthe plate O is provided a downwardly extending guide plate F, whichpreferably has its rear face flush with the rear face of the plate O,and in a guideway I formed in the plate is mounted a bar D having alongitudinal slot therein and carrying at its end the scriber E. A pin Bprovided with a knurled head passes through the slot in bar D and mayhave its lower end threaded to screw into a flange of the guide plate Fon the underside of the plate C. It will be apparent that to mark thedepth of the hinge mortise on the door, etc., the pin B may be partiallyunscrewed to adjust the bar D in the guideway I in the plate C to movethe operative point of the scriber E to have said point removed from therear face of the guide plate F to a distance equal to the depth of thehinge mortise, whereupon the pin B may be screwed down to hold the partsin adjusted position and the depth of the hinge mortise may be thenmarked on the door, etc., by holding the gage with the rear face of theguide plate F in contact with the surface of the door, etc., at rightangles to the surface on which it is desired to have the scriber markthe depth of the hinge mortise and then moving the gage with the scriberpoint pressed against the surface a distance equal to the length of thehin e mortise.

It will be understood that if desired one or both of the sides of bar Dmay be suitably marked to indicate the distance of the operating pointof the scriber from the rear face of the guide plate F.

I claim: 7

A gage comprising in combination a plate formed to provide a straightedge at the front thereof and straight edges at right angles to thefront straight edge, said plate provided with parallel slots therein, abar on the underside of the plate having the front edge thereof parallelwith the front edge of said plate, pins passing through said parallelslots and screwed in said bar, a downwardly extending guide plate on theunderside of the rear of said plate, a bar mounted in a guideway formedin said plate, said bar having. a longitudinal slot therein and carryinga scriber at the end thereof adjacent to said guide plate, and a pinpassing through said longitudinal slot and having its lower end threadedto screw into a part on the underside of said plate, substantially asdescribed and for the purposes set forth.

VVILLIAM RICHARDSON WVitnesses ALEXANDER REEVE, GEORGE HENRY RICHARDSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

